Testing device



Aug. s, 1939. L. GREELY, SR L2,168,943?.

TESTING DEVICE Filed Sept. 19, 1938 amv? we/f, Sz"

INVENTOR ATTO R N EYS Patented Aug. 8, 1939 UNITED STATES PATENT OFFICE 1 Claim.

My invention relates to testing devices and more particularly to testing devices adapted for use in connection with inner tubes and the like.

One of the principal objects of my invention is to provide a testing device adapted to receive therein an inner tube whereby said inner tube may be inflated and immersed in liquid for spotting or locating a leak in said tube.

Another object of my invention is to provide a device of the above described character so constructed and arranged as to permit an inner tube contained therein to be iniiated under relatively high pressure for disclosing a leak therein which would ordinarily be impossible to locate when the tube was normally inflated.

A further object of my invention is to provide a device of the above described character so constructed and arranged as to prevent bulging or undue expansion of the inner tube when inflated to a high pressure.

An important object of my invention is to provide a device of the character described which is simple in construction, durable in use, eiicient inoperation and economical in manufacture.

Other objects and advantages will be apparent from the following description, appended claim and annexed drawing.

Referring to the drawing wherein like reference characters designate like parts throughout the several views:

Figure l is a side elevation of my invention partly in section and illustrating an inner tube contained therein.

Figure 2 is an end elevation thereof on an enlarged scale partly in section.j

Figure 3 is a detail sectional view on an enlarged scale taken on the line 3--3 of Figure 1.

Figure 4 is a detail sectional view of a portion of the compressible ring.

In practicing my invention I provide rigid and compressible rings 5 and 6 respectively connected together in spaced relation by a cylindrical shaped body of exible Woven material l, the latter being constructed of open mesh fabric. However, it is to be understood that a Wire mesh may be employed in lieu of the fabric construction if desired.

The rigid ring 5 is of a smaller diameter than the normal diameter of the compressible ring 6.

The compressible ring 6 is fashioned with spaced ends 8, one of which is secured by means of a rivet 9 in one end of a sleeve I0 while the opposite end of the ring is slidably positioned in the opposite end of the sleeve l0. Due to the re- 5 siliency of said ring 6 the ends are movable towards each other Within said sleeve in a telescoping manner to lessen the normal diameter of the ring whereby to permit said ring 5 to be passed through the ring 5 for a purpose herein- 10 after more fully described.

In use, a deflated inner tube ll is mounted on the outer periphery of the body 'I and the rings 5 and 6 moved towards each other to effect a fold in said body and in which the inner tube is seated.

When the parts are thus arranged the ring 6 is compressed sufciently to permit the latter being passed through the ring 5 with the tube encased within the fold of the body 'l whereupon 20 said ring 5 is permitted to expand to normal position to effect locking of the inner tube Within the fold whereby upon inflation of said tube the latter will be maintained within the circumferentially extending fold of the body and precluded from bulbing or undue expansion when subjected to high pressure as clearly illustrated in Figures 3 and 4.

What I claim is:

A device of the character described, comprising, a rigid ring, a compressible ring of a normal larger diameter than said rigid ring and fashioned with spaced ends, a sleeve xed to one of said ends and slidably receiving the other of said ends whereby to reduce the diameter of said compressible ring when said ends are moved towards each other, and a body of ilexible interwoven material connecting said rings together and adapted to receive thereon a deflated tube, said compressible ring adapted to be compressed 0 to permit said tube, body of flexible interwoven material and compressible ring to be passed through said rigid ring with said tube enveloped in said material in a manner to preclude bulging of said tube when the latter is highly inflated and when said compressible ring has been expanded to normal condition adjacent and outwardly of said rigid ring.

LUVAN GREELY, SR. 

